Vacuum appliance



FIG. 1 is a perspective view of a vacuum appliance showing our new design;

FIG. 2 is a front view.

FIG. 3 is a rear view.

FIG. 4 a side view.

FIG. 5 is a side view showing the opposite side of FIG. 4.

FIG. 6 is a top view; and,

FIG. 7 is a bottom view. 

The ornamental design for a vacuum appliance, as shown and described. 